Beta haemolytic streptococci. Comparative study of the methods for extraction of group specific antigen substance (polysaccharide "C" substance) of beta haemolytic streptococci for grouping.
D000941:Antigens; D001431:Bacteriological Techniques; D066298:In Vitro Techniques; D013291:Streptococcus / Q000145:classification* / Q000276:immunology*
D000941:Antigens